Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities
Cryptoendolithic communities are almost the sole life form in the ice-free areas of the Antarctic desert, encompassing among the most extreme-tolerant organisms known on Earth that still assure ecosystems functioning, regulating nutrient and biogeochemical cycles under conditions accounted as incomp...
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ftunivtuscia:oai:dspace.unitus.it:2067/46455 2023-05-15T13:52:30+02:00 Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities Fanelli, Giuseppina Coleine, Claudia Gevi, Federica Onofri, Silvano Selbmann, Laura Timperio, Anna Maria ITA 2021 http://hdl.handle.net/2067/46455 https://doi.org/10.3390/life11020096 https://api.elsevier.com/content/abstract/scopus_id/85100583781 en eng LIFE 1 13 11 2 2075-1729 http://hdl.handle.net/2067/46455 doi:10.3390/life11020096 33514042 2-s2.0-85100583781 https://api.elsevier.com/content/abstract/scopus_id/85100583781 restricted article 2021 ftunivtuscia https://doi.org/10.3390/life11020096 2022-05-01T15:19:57Z Cryptoendolithic communities are almost the sole life form in the ice-free areas of the Antarctic desert, encompassing among the most extreme-tolerant organisms known on Earth that still assure ecosystems functioning, regulating nutrient and biogeochemical cycles under conditions accounted as incompatible with active life. If high-throughput sequencing based studies are unravelling prokaryotic and eukaryotic diversity, they are not yet characterized in terms of stress adaptations and responses, despite their paramount ecological importance. In this study, we compared the responses of Antarctic endolithic communities, with special focus on fungi, both under dry conditions (i.e., when dormant), and after reanimation by wetting, light, and optimal temperature (15 °C). We found that several metabolites were differently expressed in reanimated opposite sun exposed communities, suggesting a critical role in their success. In particular, the saccharopine pathway was up-regulated in the north surface, while the spermine/spermidine pathway was significantly down-regulated in the shaded exposed communities. The carnitine-dependent pathway is up-regulated in south-exposed reanimated samples, indicating the preferential involvement of the B-oxidation for the functioning of TCA cycle. The role of these metabolites in the performance of the communities is discussed herein. 6 Article in Journal/Newspaper Antarc* Antarctic Università degli studi della Tuscia: Unitus DSpace Antarctic The Antarctic Life 11 2 96 |
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Università degli studi della Tuscia: Unitus DSpace |
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ftunivtuscia |
language |
English |
description |
Cryptoendolithic communities are almost the sole life form in the ice-free areas of the Antarctic desert, encompassing among the most extreme-tolerant organisms known on Earth that still assure ecosystems functioning, regulating nutrient and biogeochemical cycles under conditions accounted as incompatible with active life. If high-throughput sequencing based studies are unravelling prokaryotic and eukaryotic diversity, they are not yet characterized in terms of stress adaptations and responses, despite their paramount ecological importance. In this study, we compared the responses of Antarctic endolithic communities, with special focus on fungi, both under dry conditions (i.e., when dormant), and after reanimation by wetting, light, and optimal temperature (15 °C). We found that several metabolites were differently expressed in reanimated opposite sun exposed communities, suggesting a critical role in their success. In particular, the saccharopine pathway was up-regulated in the north surface, while the spermine/spermidine pathway was significantly down-regulated in the shaded exposed communities. The carnitine-dependent pathway is up-regulated in south-exposed reanimated samples, indicating the preferential involvement of the B-oxidation for the functioning of TCA cycle. The role of these metabolites in the performance of the communities is discussed herein. 6 |
author2 |
ITA |
format |
Article in Journal/Newspaper |
author |
Fanelli, Giuseppina Coleine, Claudia Gevi, Federica Onofri, Silvano Selbmann, Laura Timperio, Anna Maria |
spellingShingle |
Fanelli, Giuseppina Coleine, Claudia Gevi, Federica Onofri, Silvano Selbmann, Laura Timperio, Anna Maria Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities |
author_facet |
Fanelli, Giuseppina Coleine, Claudia Gevi, Federica Onofri, Silvano Selbmann, Laura Timperio, Anna Maria |
author_sort |
Fanelli, Giuseppina |
title |
Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities |
title_short |
Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities |
title_full |
Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities |
title_fullStr |
Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities |
title_full_unstemmed |
Metabolomics of Dry Versus Reanimated Antarctic Lichen-Dominated Endolithic Communities |
title_sort |
metabolomics of dry versus reanimated antarctic lichen-dominated endolithic communities |
publishDate |
2021 |
url |
http://hdl.handle.net/2067/46455 https://doi.org/10.3390/life11020096 https://api.elsevier.com/content/abstract/scopus_id/85100583781 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
LIFE 1 13 11 2 2075-1729 http://hdl.handle.net/2067/46455 doi:10.3390/life11020096 33514042 2-s2.0-85100583781 https://api.elsevier.com/content/abstract/scopus_id/85100583781 |
op_rights |
restricted |
op_doi |
https://doi.org/10.3390/life11020096 |
container_title |
Life |
container_volume |
11 |
container_issue |
2 |
container_start_page |
96 |
_version_ |
1766256815568322560 |